Massive merge master

# -*- encoding: utf-8 -*-
import subprocess
import os


__author__ = 'Rodolfo Yllada (ryllada@gmail.com)'


# This little routine aims to transmit the changes commited in the master
# branch, to the rest of branches, that not are included in
# BRANCHES_TO_EXCLUDE list.
# This is very usefull when the approach is to use each additional branch for
# implement a new feature and there's a lot of branches. In this case, when a
# new feature is finished and it's merged into master branch, it's needed to
# merge these changes into remaining branches. It can be easily done by
# running this simple command.


BRANCHES_TO_EXCLUDE = ("master", "production", )


def run_bash_command(command):
    return subprocess.Popen(
        command.replace("git", "/usr/bin/git"), cwd=os.path.dirname('.'),
        shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)


def define_command_string():
    output, error = run_bash_command("git branch").communicate()
    output = output.split(" ")

    git_branches_list = [
        x.replace("\n", "").replace("*", "") for x in output if x != ""]

    if "*" in git_branches_list:
        git_branches_list.remove("*")

    for branch in git_branches_list:
        if branch in BRANCHES_TO_EXCLUDE:
            git_branches_list.remove(branch)

    command_string = ""
    for branch in git_branches_list:
        if command_string:
            command_string += " && "
        command_string += "git checkout %s && git merge master" % branch

    command_string += " && git checkout master"
    return command_string


if __name__ == '__main__':
    run_bash_command(define_command_string())